Construction crews fenced off City Hall Plaza two weeks ago and have started tearing out the engraved bricks lining the walkway in front of the new city hall, adjacent to the old city hall. The granite ball is also slated to be removed.

Christopher Walker, a spokesman for Quincy Mayor Thomas Koch, said the engraved bricks, containing the names of people who contributed to City Hall Plaza, will be catalogued and stored. Although the bricks may not be reused, the mayor is committed to recognizing the contributors in the new park, he said.

“There will be some sort of permanent marker,” Walker said.

Walker said the granite ball, moved from the Fore River rotary to city hall in 2006, will also be placed in Adams Green.

The planned work for old city hall, which was closed last year because it wasn’t up to code, includes preserving the building’s granite exterior, restoring the second floor to its original design, converting the first floor into an exhibit area and creating meeting space in the basement. Also, crews will build a connection between the two city halls.

Nauset Construction is also working on the renovations at Coddington Hall, which total about $10 million. The city is using Community Preservation Act money to cover about half the costs of both projects, and the rest will come from debt payments in the city’s budget.